Toronto Police are releasing more security images of a man who allegedly threatened to blow up a subway train on Sunday.

Officers arrived to Yonge/Bloor station around 1:55 p.m. after a man on a southbound crowded train purportedly announced to people on board that he had a bomb and would detonate it. This forced the evacuation of the train in an unsafe manner, police said.

The man was last seen leaving the subway with the frenzied crowd.

The screengrabs from onboard a southbound Yonge line train show the man wearing a grey backwards ball cap, grey t-shirt and dark-coloured backpack, blue shorts and sneakers. He was also wearing dark framed glasses.

Police said if the public locates him, do not approach him as he is considered dangerous. Instead, call 911.